On the fly decoding support

[StevenZYj]

Hi, i'm new here. First thanks to this project. Though early, it looks awesome.
I go through the current recipes and find that they are all based on ctc topology. I wonder if the current version supports on the fly decoding with aed model? Specifically, i mean aed model outputing phoneme based score and wfst based LG model dynamically computing corresponding word based score.

[csukuangfj]

I wonder if the current version supports on the fly decoding with aed model? Specifically, i mean aed model outputing phoneme based score and wfst based LG model dynamically computing corresponding word based score.

We are doing it in the opposite direction:

• (1) The attention encoder output is used in CTC decoding
• (2) We extract n-paths from the resulting lattice obtained from CTC decoding
• (3) An n-gram LM and the attention decoder are used to rescore those n-paths.